I know you said you done want a twin plate, but i've had two cars with OS Giken twins in them and they are awesome to drive, they fell just like a standard clutch, no grabbyness, bunny hopping or any other funny buisness, and the best bit is when it's worn out you just get it rebuilt, which cost much less than replacing a single. Just make sure you get a SPRUNG center clutch, Not SOLID, Solid = gay